Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751707AbdCOHMU (ORCPT ); Wed, 15 Mar 2017 03:12:20 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:38651 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750953AbdCOHLU (ORCPT ); Wed, 15 Mar 2017 03:11:20 -0400 From: Jane Li To: CC: , , , Jane Li Subject: [PATCH] net: mvneta: support suspend and resume Date: Wed, 15 Mar 2017 15:08:34 +0800 Message-ID: <1489561714-2368-1-git-send-email-jiel@marvell.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-03-15_02:,, signatures=0 X-Proofpoint-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1703150057 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1892 Lines: 71 Add basic support for handling suspend and resume. Signed-off-by: Jane Li --- drivers/net/ethernet/marvell/mvneta.c | 44 +++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 61dd446..4f16342 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -4405,6 +4405,49 @@ static int mvneta_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int mvneta_suspend(struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + struct mvneta_port *pp = netdev_priv(dev); + + if (netif_running(dev)) + mvneta_stop(dev); + netif_device_detach(dev); + clk_disable_unprepare(pp->clk_bus); + clk_disable_unprepare(pp->clk); + return 0; +} + +static int mvneta_resume(struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + struct mvneta_port *pp = netdev_priv(dev); + int err; + + clk_prepare_enable(pp->clk); + clk_prepare_enable(pp->clk_bus); + mvneta_defaults_set(pp); + err = mvneta_port_power_up(pp, pp->phy_interface); + if (err < 0) { + dev_err(device, "can't power up port\n"); + return err; + } + + if (pp->use_inband_status) + mvneta_fixed_link_update(pp, dev->phydev); + + netif_device_attach(dev); + if (netif_running(dev)) + mvneta_open(dev); + return 0; +} +#endif + +static const struct dev_pm_ops mvneta_pm_ops = { + SET_LATE_SYSTEM_SLEEP_PM_OPS(mvneta_suspend, mvneta_resume) +}; + static const struct of_device_id mvneta_match[] = { { .compatible = "marvell,armada-370-neta" }, { .compatible = "marvell,armada-xp-neta" }, @@ -4419,6 +4462,7 @@ static int mvneta_remove(struct platform_device *pdev) .driver = { .name = MVNETA_DRIVER_NAME, .of_match_table = mvneta_match, + .pm = &mvneta_pm_ops, }, }; -- 1.9.1